et al. Quantum teleportation over 100 km of fiber using highly efficient superconducting nanowire single-photon detectors. Optica 2, 832–835 (2015). Article ADS Google Scholar Valivarthi, R. et al. Teleportation systems toward a quantum internet. PRX Quantum 1, 020317 (2020). Article ADS ...
For the past three decades nanoscience has widely affected many areas in physics, chemistry and engineering, and has led to numerous fundamental discoveries, as well as applications and products. Concurrently, quantum science and technology has developed into a cross-disciplinary research endeavour connec...
The φ-parameters in ρL1R1 and ρL2R2 are the same provided that the two states are established over the same stationary channels. We register only the coincidences of the two-side detectors, so the protocol is successful only if there is a click on each side. Under this condition, the...
The detectors, on the other hand, belong to real space where information gathered from them includes supplementary elements corresponding to energy that is exchanged in quanta. The granularity associated with this process does not belong to Hilbert space. Or, in other words, quantum mechanics does ...
As for the significance of this separation, the trio say that in quantum error correction, understanding the interplay between entanglement and magic can improve the design of error-correcting codes that protect quantum information from decoherence (a loss of quantumness) and other errors. For instan...
Figure 2. Alice and Bob making spin measurements in the xz plane on a pair of spin-entangled particles with their Stern-Gerlach (SG) magnets and detectors. Bob observes the same regarding his SG magnet orientationβ. Thus, the source is rotationally invariant in the spatial plane P orthogonal...
[time correction to QED], the small size of the basic effect may be compensated for by the large number of experimental possibilities. If quantum mechanics should in fact be extended in the time direction then essentially any time dependent apparatus with time dependent detectors may provide a ...
sent to photomultiplier tube (PMT) detectors. (Bottom) The N qubits within the ion trap modules (red) are coupled via single-mode fiber to an N × N optical cross-connect switch, through N/2 beamsplitters, to an array of single-photon detectors. Photo courtesy of J. Kim/Duke ...
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we refer to these twin-field-type schemes as one-mode MDI-QKD schemes for a conceptual comparison to the traditional two-mode MDI-QKD schemes, since the single-side information in these schemes is encoded into a single-optical mode in each round. We remark that the single-optical-mode encod...